Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/31936
Registo completo
Campo DC | Valor | Idioma |
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dc.contributor.author | Batista, Rosa Maria Ferreira | por |
dc.contributor.author | Costa, Susana P. G. | por |
dc.contributor.author | Silva, Regina M. P. | por |
dc.contributor.author | Lima, Nuno E. M. | por |
dc.contributor.author | Raposo, M. Manuela M. | por |
dc.date.accessioned | 2014-12-15T14:49:54Z | - |
dc.date.available | 2014-12-15T14:49:54Z | - |
dc.date.issued | 2014 | - |
dc.identifier.issn | 0143-7208 | por |
dc.identifier.uri | https://hdl.handle.net/1822/31936 | - |
dc.description.abstract | A series of arylfuryl-bis(indolyl)methane derivatives were prepared in good yields by electrophilic substitution of indole with furyl aldehydes through a simple and mild hydrogensulfate-catalysed reaction and studied as chemosensors for transition metal cations by performing spectrophotometric and spectrofluorimetric titrations. Selective recognition of Hg2+ was achieved in organic aqueous mixture (CH3CN/H2O, 7:3) for the various receptors, with an easily detectable colour change from colourless to purple and also through a fluorescence quenching, making these compounds suitable for dual chromoand fluorogenic ratiometric sensing of Hg2+. The binding stoichiometry between the receptors and Hg2+ was found to be 1:1. The binding process was also followed by 1H NMR titrations which corroborated the previous findings. | por |
dc.description.sponsorship | Fundação para a Ciência e a Tecnologia (FCT) | por |
dc.language.iso | eng | por |
dc.publisher | Elsevier 1 | por |
dc.rights | openAccess | - |
dc.subject | Bis(indolyl)methanes | por |
dc.subject | Arylfuran | por |
dc.subject | Ratiometric fluorogenic chemosensors | por |
dc.subject | Hg2+ | por |
dc.subject | Direct visual detection | por |
dc.subject | Aqueous solution | por |
dc.title | Synthesis and evaluation of arylfuryl-bis(indolyl)methanes as selective chromogenic and fluorogenic ratiometric receptors for mercury ion in aqueous solution | por |
dc.type | article | por |
dc.peerreviewed | yes | por |
dc.relation.publisherversion | http://www.sciencedirect.com/science/article/pii/S0143720813004464 | por |
sdum.publicationstatus | published | por |
oaire.citationStartPage | 293 | por |
oaire.citationEndPage | 300 | por |
oaire.citationTitle | Dyes and Pigments | por |
oaire.citationVolume | 102 | por |
dc.identifier.doi | 10.1016/j.dyepig.2013.11.008 | por |
dc.subject.fos | Ciências Naturais::Ciências Químicas | por |
dc.subject.wos | Science & Technology | por |
sdum.journal | Dyes and Pigments | por |
Aparece nas coleções: | CDQuim - Artigos (Papers) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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manuscript DYPI 2014.pdf | 1,84 MB | Adobe PDF | Ver/Abrir |